Hinge configuration for an electronic device

ABSTRACT

Particular embodiments described herein provide for an electronic device, such as a notebook computer or laptop, that includes a circuit board coupled to a plurality of electronic components (which includes any type of components, elements, circuitry, etc.). The electronic device may also include a hinge assembly to secure a top portion of the electronic device to an accessory. The hinge assembly is to allow a rotation of the top portion in relation to the accessory. The hinge assembly may include a plurality of discs to receive a plurality of segments of the accessory as the hinge assembly engages to secure the top portion of the electronic device to the accessory.

CROSS-REFERENCE TO RELATED APPLICATIONS

This Application is a divisional of U.S. patent application Ser. No.13/976,381, filed Jun. 26, 2013, which is a national phase entry ofPCT/US2012/066784, filed Nov. 28, 2012. These priority applications areincluded by reference herein in their entireties.

TECHNICAL FIELD

Embodiments described herein generally relate to hinge configurationsfor an electronic device.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments are illustrated by way of example and not by way oflimitation in the FIGURES of the accompanying drawings, in which likereferences indicate similar elements and in which:

FIG. 1A is a simplified schematic diagram illustrating an embodiment ofan electronic device in an open configuration with an attached keyboard,in accordance with one embodiment of the present disclosure;

FIG. 1B is a simplified schematic diagram illustrating an embodiment ofan electronic device with an attached keyboard, in a closedconfiguration in accordance with one embodiment of the presentdisclosure;

FIG. 1C is a simplified schematic diagram illustrating an embodiment ofan electronic device in a closed configuration with an attachedaccessory cover, in accordance with one embodiment of the presentdisclosure;

FIG. 2 is a simplified schematic diagram illustrating an orthographicview of the electronic device shown separated into two segments;

FIG. 3 is a simplified schematic diagram illustrating an orthographicview of the electronic device when the two segments are connectedtogether;

FIG. 4 is a simplified orthographic view of a disc feature of theelectronic device;

FIG. 5 is a simplified schematic diagram illustrating an orthographicview of an accessory of the electronic device in accordance with oneexample implementation;

FIG. 6 is a simplified schematic diagram illustrating an orthographicview of the front of an accessory dock connection feature of anaccessory device in accordance with one embodiment of the presentdisclosure;

FIG. 7 is a simplified schematic diagram illustrating a view of the rearof an accessory dock connection feature of an accessory device inaccordance with one embodiment of the present disclosure;

FIG. 8 is a simplified schematic diagram illustrating an orthographicview of an embodiment that includes an integration of an accessory dockconnection feature with its magnetic band segments that attract discelements of the electronic device;

FIG. 9 is a simplified schematic diagram illustrating an orthographicview showing an embodiment of an accessory device without the accessorydock connection features;

FIG. 10 is a simplified schematic diagram illustrating a hinge assemblyassociated with the electronic device;

FIGS. 11-14 are simplified schematic diagrams illustrating certain hingeassembly components associated with the electronic device;

FIG. 15 is a simplified schematic diagram illustrating one potentialdesign arrangement associated with the present disclosure;

FIG. 16 is a simplified schematic diagram illustrating one potentialsnap-band configuration of the present disclosure;

FIG. 17 is a simplified schematic diagram illustrating a magnetcomponent associated with the electronic device;

FIG. 18 is a simplified schematic diagram illustrating a cross-sectionof an engaged magnet with a ferrous ring band associated with theelectronic device;

FIG. 19 is a simplified schematic diagram illustrating a cross-sectionof engaged teeth associated with a magnet of the electronic device;

FIG. 20 is a simplified schematic diagram illustrating a cross-sectionof an assembly associated with the electronic device;

FIG. 21 is a simplified schematic diagram illustrating an embodiment ofan electronic device consistent with this disclosure;

FIG. 22 is a simplified schematic diagram illustrating molded-inaccessory docking feature bands and band magnets associated with anaccessory device;

FIG. 23 is a simplified schematic diagram illustrating a latch magnetassociated with the electronic device;

FIG. 24 is a simplified schematic diagram illustrating a docking stationembodiment associated with the electronic device;

FIG. 25 is a simplified schematic diagram illustrating an speakerembodiment associated with the electronic device; and

FIG. 26 is a simplified block diagram illustrating potential electronicsassociated with the electronic device.

The FIGURES of the drawings are not necessarily drawn to scale, as theirdimensions can be varied considerably without departing from the scopeof the present disclosure.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

The following detailed description sets forth example embodiments ofapparatuses, methods, and systems relating to hinge configurations foran electronic device. Features such as structure(s), function(s), and/orcharacteristic(s), for example, are described with reference to oneembodiment as a matter of convenience; various embodiments may beimplemented with any suitable one or more of the described features.

Traditionally, tablet devices and their associated accessories existwith minimal integration. A keyboard accessory, for example, is often anafterthought that requires a combination of elastic and/or magnets toconnect the two disparate components having no power integration betweenthem (e.g., no power integration between a tablet and a keyboardaccessory). Docking the tablet to the accessory can provide a limitedrange of motion for angling the tablet in a laptop usage orientation, oronly provide fixed angular orientations. In addition, thekeyboard-device interaction may only allow one orientation of thekeyboard to the device when connected (i.e., the device screen onlyfaces the keyboard). This configuration stifles the user's flexibility,along with hindering the overall user experience of the device duringlaptop orientation usage.

Particular embodiments described herein provide for an electronicdevice, such as a notebook computer, laptop, cellphone, or other mobiledevice that includes a circuit board coupled to a plurality ofelectronic components (which includes any type of components, elements,circuitry, etc.). The electronic device may also include a base portionand a top portion coupled to the base portion at a hinge configured suchthat the base portion and the top portion can rotate between an openconfiguration of the electronic device and a closed configuration of theelectronic device (and hold positions with respect to one another atpoints in between open and closed). Certain embodiments presented hereincan offer an effective hinge and docking capability that provides anorientation flexibility and connection to enable a more extensiveintegration between the electronic device (e.g., a tablet) and anaccessory (e.g., a keyboard, audio system, a movie player system, adocking station, accessory cover, etc.).

The electronic device may also include a hinge assembly to selectivelysecure (e.g., based on a desired configuration) a top portion of theelectronic device to an accessory. The hinge assembly is to allow arotation of the top portion in relation to the accessory. The hingeassembly includes one or more discs to receive one or more segments ofthe accessory, as the hinge assembly engages to secure the top portionof the electronic device to the accessory. In more particularembodiments, the hinge assembly includes a disc-toothed wheel to receivethe one or a plurality of segments of the accessory in order to securethe top portion to the accessory. Additionally, the accessory mayinclude one or more rib segments to provide an alignment function, asthe hinge assembly of the device engages the accessory (providingincreased strength and stiffness to this area of the accessory). In anembodiment that includes magnets in this particular region of theaccessory, these rib segments can provide the additional function offocusing the magnetic force of the magnets. In addition, the accessorymay include one tooth (or a plurality of teeth features) to provideresistance to a rotational motion between the hinge assembly and theaccessory, allowing them to hold their relative positions without userinteraction. In addition, the accessory may include one or more magneticbands that attract one or more rings provided in the top portion.

In an embodiment, the accessory docking features of the accessory do notinclude magnets. Instead, the device can be retained by the accessory atthe hinge connection point by the accessory engaging features of theelectronic device with an over center (or other type of) mechanical snapretention.

In yet other embodiments, an electronic device is provided that includesa hinge assembly to selectively secure a top portion of the electronicdevice to an accessory. The hinge assembly is to allow a rotation of thetop portion in relation to the accessory, and the hinge assemblyincludes at least a three-piece snap configuration (or a four-piece, afive-piece, etc.) that is to provide a retention force between the topportion and the accessory. Power signals can be run separately througheach of the three pieces of the three-piece snap configuration.Alternatively, the power signals can be run through a middle piece ofthe three-piece snap configuration, and two outer pieces of thethree-piece snap configuration can be insulators. The accessory can be akeyboard that includes a keyboard side snap with one piece, and aplurality of slots can be provided to allow an independent motion ofouter snap bands of the keyboard.

Hinge Configuration for Electronic Device

FIG. 1A is a simplified schematic diagram illustrating an embodiment ofan electronic device 10 in an open configuration in accordance with oneembodiment of the present disclosure. Electronic device 10 may include abase portion 16, comprising a keyboard 12, a touchpad 18, and a topportion 14, comprising a display 26 and one or more discs 15. Display 26may be disposed within/on and/or supported by top portion 14. In one ormore embodiments, display 26 is a screen that can be a liquid crystaldisplay (LCD) display screen, a light-emitting diode (LED) displayscreen, an organic light-emitting diode (OLED) display screen, a plasmadisplay screen, or any other suitable display screen system.

In one or more embodiments, electronic device 10 is a notebook computeror laptop computer. In still other embodiments, electronic device 10 maybe any suitable electronic device having a display such as a mobiledevice, a tablet computer and/or a tablet device (e.g., an i-Pad), apersonal digital assistant (PDA), a smartphone, an audio system, a movieplayer of any type, a computer docking station, etc.

In general terms, electronic device 10 can offer a suitably comfortablegrip for an end user to manipulate base portion 16 (e.g., to separate itfrom top portion 14). Electronic device 10 may also include one ormultiple discs 15 that enable an integrated detachable accessorysolution from mechanical, electrical, and aesthetica) standpoints. Theaccessory band design feature can provide mechanical and magneticlead-in guidance and attraction force for retention during docking.Additionally, electronic device 10 may use a mechanical snap-in featureto easily attach, retain, and detach any accessory. The power ofelectronic device 10 can be physically isolated from its chassis and/or,further, it can be integrated within one or more of its disc assemblies.Moreover, electronic device 10 can offer docking that allows powerand/or data to flow between the device and the accessory (e.g.,keyboard) to which it is docked. In addition, electronic device 10 canoffer a space saving integration of a clutch mechanism residing insidethe volume of the disc feature. Additionally, electronic device 10 canoffer an improved range of motion for the display when the device isoriented in a laptop mode, as detailed below.

Electronic device 10 may also include a middle portion that is providedbetween base portion 16 and top portion 14. The middle portion mayaesthetically cover a portion of hinges 15 (or be proximate to multiplehinges 15) existing between base portion 16 and top portion 14. Hinges15 can define an axis of rotation that is shared between base portion 16and top portion 14. In one embodiment, base portion 16 and top portion14 are hingedly coupled via one or more hinges 15 (as shown).

In the particular embodiment shown in FIG. 1A, electronic device 10 is arelatively thin and sleek tablet having a touch screen (e.g., 10-inchscreen) and a detachable and re-attachable keyboard accessory.Electronic device 10 provides for an integrated device that can includea display section (containing a main logic board and barrel installedbatteries) and a keyboard section. In addition, its hinge mechanismallows the display section to be attached to the keyboard in twodifferent orientations: the display facing inward and the display facingoutward. This mechanism can provide multiple modes (possibleconfigurations), such as a laptop mode, tablet mode, movie mode (as wellas closed mode) to a user. All of these configurations are discussedbelow with reference to various FIGURES that further illustrate some ofthe operational capabilities associated with electronic device 10.

For the particular magnetic keyboard design, it should be noted that thekeyboards that are currently available for tablets do not offer asuitable user experience. Typing on glass is ergonomically uncomfortableand, separately, typical Bluetooth keyboards are thick and cumbersome.In contrast to those flawed systems, the keyboard option for electronicdevice 10 can provide a user experience that replicates a moretraditional computer keyboard experience. Additionally, from theperspective of the user, the key travel feels like a common computerkeyboard (e.g., travel could be approximately 0.5 mm vs. 2.5 mm on atraditional computer keyboard, but feels the same). Moreover, there isenough separation between the keys to make it easier for touch-typers todistinguish between keys for improved touch-typing.

In a particular embodiment, the keyboard is an ultra-thin (e.g., 3.30mm), ultra-light (e.g., 275 grams) keyboard with sufficient keyboardband stiffness and strength to serve as a tablet device cover. Thekeyboard can be made from a laminate construction that uses variationsof key design shapes and magnets to replicate a touch-typing userexperience with the feel of a typical computer keyboard. In order toaccount for the thinner side areas of the keyboard device, the keyboardedge keys may be pivoted on one side and, further, may have magnets onlyon one side in a particular embodiment of the present disclosure. Thekeys can be of any suitable type such as toggle operation keys, forexample, with an arrow key operation that merges four keys that cannotmove diagonally. A magnet can be provisioned at various locations of thekeyboard (e.g., away from the center of the keys).

In operation, the spacing between the keys of the keyboard can enable atouch-typer to easily distinguish between keys with fingers. Edge keyscan be specially designed for thinner sides and, further, utilizevarying magnet configurations. An edge key configuration allows keys tohang over the edge of the support base to accommodate the thinner sidesof the keyboard device. Magnets can be suitably positioned to minimizethe toggle affect. Toggle key configuration is used with the arrow keys.

For the magnetic keys, the use of magnets embedded within the keys andattracted to a ferrous top plate above the sides of the keys can providethe user with the sense of a traditional computer keyboard key traveland rigidity. The keyboard can also provide a physical keystrokeconfirming the depression of the key. In certain implementations, thekeyboard keys are magnetically biased upward with electricallyconductive pads beneath the keys, which trigger a key press. For theactual keyboard construction, a laminate construction may be employed inconjunction with an injection mold, where the metal is integrated intothe plastic. A flexible printed circuit board (FPC) can also be used incertain embodiments of the present disclosure. Connections can be formedto the bands and a small battery may be optionally inserted into thekeyboard to provide a limited backup power supply. In one non-limitingexample, the tablet keyboard dimensions are approximately: 261.40mm(X)×170.16 mm(Y)×3.30 mm (Z, key top-to-bottom surface). Otherembodiments of the keyboard can include any suitable dimensions, sizes,and shapes: all of which are encompassed by the present disclosure.

Note that any number of connectors (e.g., Universal Serial Bus (USB)connectors (e.g., in compliance with the USB 3.0 Specification),Thunderbolt™ connectors, WiFi connectors, a non-standard connectionpoint such as a docking connector, etc.) and a plurality of antennas canbe provisioned in conjunction with electronic device 10. [Thunderbolt™and the Thunderbolt logo are trademarks of Intel Corporation in the U.S.and/or other countries.] The antennas are reflective of electricalcomponents that can convert electric currents into radio waves. Inparticular examples, the antennas can be associated with WiFiactivities, wireless connections more generally, small cell deployments,Bluetooth, 802.11, etc.

In one example embodiment, the motherboard of electronic device 10 is ageneral circuit board that can hold various components of the internalelectronic system of electronic device 10. The components may include acentral processing unit (CPU), a memory, etc. The motherboard can alsocouple to one or more connectors in order to accommodate otherperipherals sought to be used by a user of electronic device 10. Morespecifically, the motherboard can provide the electrical connections bywhich the other components of the system can communicate.

Any processors (inclusive of digital signal processors, microprocessors,supporting chipsets, etc.), memory elements, etc. can be suitablycoupled to the motherboard based on particular configuration needs,processing demands, computer designs, etc. Other components such asexternal storage, controllers for video display, sound, and peripheraldevices may be attached to the motherboard as plug-in cards, via cables,or integrated into the motherboard itself.

Note that particular embodiments of the present disclosure may readilyinclude a system on chip (SOC) central processing unit (CPU) package. AnSOC represents an integrated circuit (IC) that integrates components ofa computer or other electronic system into a single chip. It may containdigital, analog, mixed-signal, and often radio frequency functions: allof which may be provided on a single chip substrate.

In a particular embodiment, touchpad 18 is a pointing device thatfeatures a tactile sensor, a specialized surface that can translate themotion and position of a user's fingers to a relative position onscreen. Touchpad 18 can be used in place of a mouse (e.g., where deskspace is scarce or based on user preference). Touchpad 18 can operateusing capacitive sensing, conductance sensing, or any other appropriatesensing technology. In a particular embodiment, a suitable battery canbe provisioned proximate to touchpad 18 in order to power itsoperations. In addition, either surface (or both surfaces) of display 26can be a touch display that uses any of the technologies discussedherein.

Turning briefly to FIG. 1B, FIG. 1B is a simplified schematic diagramillustrating a side view of electronic device 10 in a closedconfiguration. In operation, when electronic device 10 is in a closedposition, the thin plastic keyboard can protect the display. When thedisplay section is flipped up to an open position, it operates in atraditional laptop orientation (i.e., a keyboard resting on a surfacewith a display held in an upright position). In a particular embodiment,electronic device 10 includes an 18.5 mm pitch full-size keyboard thatprovides for an optimal touch-typing experience. When the displaysection is flipped upside-down to face outwardly away from the keyelements of the keyboard, electronic device 10 can operate in a tabletconfiguration with the keyboard nested behind the screen and out of theway of user interaction. Its barrel-shaped hinge mechanism feature canserve as an ideal grip for the end user. In this mode, the keyboard canbe stowed behind the display. In the tablet mode, the display can stillbe flipped up. In this mode, the keyboard can operate as a stand (behindthe display), and the device can become a stationary display (e.g.,movie mode). When the display section is detached from the keyboard, itcan function as a simple lightweight tablet by itself.

In the case where the accessory of electronic device 10 is a keyboard,then the keyboard main components can include various elements. Forexample, the keyboard can include a keyboard body reflective of aunibody-molded part that may use insert and/or comolding methods toeliminate visible fasteners. In addition, the keyboard body may furtherinclude insert-molded band features to provide stiffness to the outerportion of the scoop geometry as well as transmit rotational loads,which inhibit top portion 14 from rotating with respect to bottomportion 16. Also provided are one or more band features that can providefor a magnetic attraction of the ferrous disc shaped features of thetablet. Electrical current can be passed from the tablet to the keyboardto recharge an on-board battery or capacitor, or power any number ofitems (e.g., a Bluetooth radio). Additionally, the tablet can besuitably anchored to the keyboard to prohibit a toothed disc featurefrom rotating with respect to the keyboard, while allowing the tablet toconcentrically rotate in the “scoop” part of the keyboard through one ormore clutch elements in the tablet.

For the actual keys, in a particular non-limiting embodiment, the keysare configured with a 0.5 mm travel distance (for individual keys). Inaddition, tactile feedback can be provided (e.g., 70 gram with “cliffdrop” force deflection feel) to mimic the typing experience oftraditional keyboards. In certain implementations, there is little (orno) dead space on the key surface. There can be various types of keys onthe keyboard. For example, the keyboard can include pivoting keys (e.g.,left edge: tilde, tab, caps lock, shift, left ctrl; right edge:backspace, backslash, enter, shift), rocking keys such as the arrowkeys, and substantially vertical travel keys such as function keys andother keys that are not along the right or left edge, etc.

Electronic device 10 can also include a nonferrous web that providessufficient stiffness to the keyboard body. The web can provide a guidefor keys to move vertically, but appropriately restrain x-y motion. Inaddition, a ferrous top plate can increase the stiffness of keyboard,retain keys from falling out, and attract magnetic keys to bias themupwards.

In terms of Bluetooth capability, the power can reach the radio bypassing current through the bands/socket. The tablet can includeelectrically protected (but “hot”) toothed discs. The Bluetooth radiocircuit board can have a direct current (DC) rectifier to power theelectronics independent of the orientation of the tablet (i.e., laptopmode vs. tablet mode, etc.).

In certain example embodiments, the design of electronic device 10 canallow a tablet to connect to the keyboard in both a laptop type mode anda tablet type mode, in addition to a movie stand type mode. The range ofviewing angle adjustment is continuous (e.g., extending between 0 and125°, or 150°, or more, or different ranges may be provided). 0° cancorrespond to the fully closed position, whereas 125° or similar can bedefined as fully opened. There are two socket modules built into thetablet side of the device, which are magnetically attracted to thenesting features built into the keyboard. FIG. 1C is a simplifiedschematic diagram illustrating an embodiment of electronic device 10 ina closed configuration with an attached accessory cover in accordancewith one embodiment of the present disclosure.

FIG. 2 is a simplified schematic diagram illustrating an orthographicview of electronic device 10 being separated into two segments. FIG. 3is a simplified schematic diagram illustrating an orthographic view ofthe electronic device when the two segments are connected together.

Focusing for a moment on the disc clutch, the specific design ofelectronic device 10 integrates the clutch element the resides insidethe volume of the disc features of the electronic device and, further,saves space by incorporating elements of the disc into the clutch (i.e.,a toothed wheel). In general, the design and assembly mechanism allowsthe tablet disc sub-assembly to be installed into a slot in the tabletenclosure that is smaller in width than the disc sub-assembly in itsinstalled configuration. The actual disc can be designed with anelectrical power connection that is physically isolated from thechassis. Additionally, electronic device 10 offers a friction clutchintegration with a disc-toothed wheel feature in the center (or otherlocation) of the disc features in the electronic device (e.g., forimproved range of motion, more compact size, position hold capabilities,and better torque transition characteristics).

The magnetic band segments in the accessory (e.g., the keyboard) canattract the ferrous rings of the tablet discs. The center rib (discussedin detail below) provides an amplified magnetic strength focused intothe band. During insertion of top portion 14 into bottom portion 16, thecenter toothed wheel features of the tablet disc, which are connected tothe clutch, engage the tooth at the center of the accessory scoop. Thecenter rib of the accessory scoop can serve to provide a suitablealignment lead-in function. The encasing can provide a directional focusfor the magnetic field. In a particular embodiment, a clutch withbidirectional uniform torque properties is provisioned in the disc. Thiscan allow top portion 14 to be inserted into bottom portion 16 in eitherorientation and, further, provide the uniform resistance to motion. Thisis in contrast to a typical standard laptop clutch, which may provideless resistance in one direction or variable resistance based on theangle between the screen and the keyboard.

FIG. 4 is a simplified orthographic view of a disc groove 40 ofelectronic device 10. In this particular embodiment, disc groove 40 canbe in the range of 1.0-3.5 millimeters, although alternative embodimentscould have any other suitable dimension. FIG. 5 is a simplifiedschematic diagram illustrating an orthographic view of a potentialaccessory of electronic device 10 in accordance with one exampleimplementation. This particular embodiment includes symmetrical segments50 a-50 b that can engender a suitable coupling for a given accessory.For example, an accessory such as a keyboard, when attached, becomesintegrated to allow power to flow between the tablet's disc mechanismand the keyboard and, thus, power the Bluetooth radio embedded in thekeyboard.

FIG. 6 is a simplified schematic diagram illustrating an orthographicview of an accessory dock 60 of electronic device 10 in accordance withone embodiment of the present disclosure. Accessory dock 60 can providea suitable lead-in/guidance feature during connection activities. FIG. 7is a simplified schematic diagram illustrating the underside of theaccessory band components associated with electronic device 10. Magnetcomponents 70 on the opposite side (and installed in the band) may beaccompanied by a suitable backing (e.g., a steel backing) to reduceunwanted stray magnetic fields. Without such a backing, magnetic forceswould have an increased likelihood of interaction with other components,alter credit card information, corrupt certain storage elements, etc.The shape of the band/keyboard and the tablet transition can allow for acam-out release of the tablet from the keyboard by using the tablet as alever to overcome the strong magnetic pull force of the connection. Themagnetic pull from the keyboard to the tablet can ensure an electriccontact and mechanical connection between the keyboard bands and thetablet. The clutch assembly can be electrically isolated from the tabletand keyboard enclosures to allow positive and negative connectionsbetween the tablet and the keyboard made through the two clutches. Thephysical contact of the toothed wheel features of the tablet discelements to the torque transmission tooth of the keyboard bands allowsfor electrical power and/or signals to pass from the tablet to thekeyboard. The toothed disc can suitably transmit torque from thekeyboard to the tablet. Additionally, certain embodiments may useaplastic-housed clutch element to electrically isolate the toothed discfrom the chassis.

FIG. 8 is a simplified schematic diagram illustrating an orthographicview of the keyboard electronics and magnetic bands 80 with thesurrounding keyboard housing removed. FIG. 9 illustrates a keyboardhousing 90 with the associated keyboard electronics and magnetic bandsremoved. FIG. 10 is a simplified schematic diagram illustrating a hingeassembly 100 associated with electronic device 10. FIGS. 11-14 aresimplified schematic diagrams illustrating certain hinge assemblycomponents 110/120/130/140 associated with electronic device 10. Thedesign and assembly mechanism of electronic device 10 allows assembly ofthe tablet disc into a slot that is smaller than the assembled disc.FIG. 15 is a simplified schematic diagram illustrating one potentialdesign arrangement 150 associated with the present disclosure.

FIG. 16 is a simplified schematic diagram illustrating one potentialsnap-band configuration 175 in accordance with one embodiment of thepresent disclosure. In certain example embodiments, the snap band on thekeyboard can be used to retain the electronic device (e.g., insteadof/or in conjunction with the use of magnets). In this particularexample, a somewhat stiffer central section 171 can be provided, alongwith a more flexible set of side arms 172/173. In addition, a disc guidefeature 174 is also provided in conjunction with a segment 177 thatengages the tablet disc over the center (e.g., for retention purposes).Also provided in this particular embodiment is a tooth feature 176 thatcan engage the tablet disc toothed wheel for torque transmission.

In operation of one example embodiment, there is a three-piece snap forpurposes of retention. Power signals can propagate through each of thethree pieces separately. In addition, the power signals can run throughthe middle piece, where the two outer pieces operate as insulators. Akeyboard side snap can be provided with one piece, where slots are usedto allow for an independent motion of the outer snap bands and innertorque grabbing band/tooth. In yet other implementations, a one-piecesnap can be provided without a separation of the three sections. Itshould be noted that any suitable plastic, fiber-reinforced plastic,highly elastic metal (e.g., titanium) can be used in such embodiments.Note also that for the one-piece snap, three-piece snap, and themagnetic retention can all be implemented without a clutch in theelectronic device. For example, instead of using a clutch mechanism, theelectronic device and the accessory can be held in position angularlywith respect to one another (e.g., with the friction of their respectivecylindrical mating surfaces).

FIG. 17 is a simplified schematic diagram illustrating a magnetcomponent 170 associated with electronic device 10. In a particularembodiment, retention of the tablet to the keyboard is achieved throughtwo arc-shaped ferrous steel components that may be embedded with fourlinearly polarized segment-shaped magnets. Magnets can attract ferroussteel ring bands that are part of the tablet socket modules. FIG. 18 isa simplified schematic diagram illustrating a cross-section of anengaged magnet 185 with a ferrous ring band 180 associated withelectronic device 10. FIG. 19 is a simplified schematic diagramillustrating a cross-section of engaged teeth 190 associated with amagnet of electronic device 10. In a particular embodiment, angleadjustment and position hold can be achieved by engaging a single toothbuilt into the keyboard socket nest with the toothed disc.

FIG. 20 is a simplified schematic diagram illustrating a cross-sectionof the internal features of a tablet disc assembly 200 associated withelectronic device 10. This particular embodiment includes a hardenedsteel-toothed disc 202, a modified REELtorq insert (clutch element) 204,an electrical isolation washer 206, and a torque transition ring 208.Hence, there can be two REELTorq inserts (clutch elements) integrated inthe tablet socket design. Alternative embodiments can use other clutchelement mechanisms in place of these inserts. The hardened steel tootheddisc could be integrated with (or appropriately assembled onto) theshortened shaft of the torque insert (e.g., press fit). Moreover, acustom overmolded engineered plastic (e.g., polycarbonate (PC) 20% glassfiber (GF) or equivalent) body can be provided that protects torqueelements, adapts to the tablet barrel section, and electricallyinsulates the electrically “live” toothed disc.

In certain embodiments, the clutch mechanism does not have to beinternal to the device discs (e.g., they can be in the area shown asbeing occupied by batteries in certain FIGURES). In essence, any clutchmechanism can be used in order to accommodate the teachings of thepresent disclosure. Additionally, friction forces do not have to beequal in both directions in certain embodiments of the presentdisclosure.

For the actual assembly, one of the two ferrous steel bands can beassembled with the torque insert and then inserted into the tablet bysliding it into the center barrel section with the second ferrous steelband loosely present over the center-toothed disc, which has a smallerouter diameter than the inner diameter of the ferrous steel band.Subsequently, the connector sub-assembly can be pushed in from theoutside through the outer portion of the tablet barrel and the secondferrous steel band can be secured onto it.

FIG. 21 is a simplified schematic diagram illustrating a potentialbattery configuration 210 associated with electronic device 10. Batterycells that reside within the tablet cylindrical barrel (throughprotective circuitry) can deliver current to the toothed discs thatconnect to (and power) the Bluetooth keyboard. FIG. 22 is a simplifiedschematic diagram illustrating insert-molded bands with engagementfeatures and a band magnet assembly (generally indicated at 220)associated with electronic device 10. In this particular embodiment, aBluetooth radio module is being illustrated in conjunction with a band,a band magnet, and three band support posts. The bands shown in FIG. 22can house rare earth magnets that attract the discs in the tablet. Thebands can be made from low-carbon steel that helps reduce stray magneticfields emitting from the underside of the keyboard. Three band supportposts can pass through the keyboard wall and be pressed into each bandin accordance with one embodiment of the present disclosure. This canmechanically connect the bands to the keyboard and/or to pass electricpower or signals from the bands to the internal region (circuitry) ofthe keyboard. The band and band magnet assembly can also be insertmolded into the plastic keyboard body, which helps support the outboardtip of the keyboard body.

The band support posts can pass current from the tablet through the bandand to the Bluetooth radio module. Because the discs in the tablet havean electric polarity and also have the ability to be inserted into thekeyboard in multiple orientations, a DC rectifier can be used on theBluetooth radio module. The band support posts can also anchor the bandsto help transmit and distribute loads to the keyboard. A single centertooth on the band can mate with the toothed disc in the tablet toprevent unwanted toothed disc rotation with respect to the keyboard and,further, allow the tablet to be inserted into the keyboard in bothpossible orientations. Because the bands touch the electricallylive-toothed discs of the tablet, the bands can become electricallycharged, so they can be electrically isolated from other metalcomponents of the keyboard, though proper keyboard and tablet electroniccircuit design may also be used to eliminate this need.

In certain embodiments, instead of passing power signals through thetoothed wheel, certain configurations can pass power signals through oneor a plurality of discs with wiping contacts on the accessory side.Other configurations can pass power signals through disc features thatare not necessarily the ferrous features being shown, but any other ringof metal could be used as a contact. In yet other examples, powersignals can be passed through a plug-in connector (e.g., whose male sideprotrusion is built into the keyboard side and whose female side isbuilt into the electronic device). This could effectively make theelectrical connection and, further, could be used as the sole point oftorque transmission between the keyboard and the tablet. Note that suchan embodiment is like a scaled-up version of the tooth engaging in thetoothed wheel. This might not necessarily be ideal in that it may onlyallow the tablet and keyboard (or any other accessory) to be connectedwhen they are in one orientation. Virtually any other electricalconnection methods could be used and, thus, are clearly within the scopeof the present disclosure. Additionally, alternative constructions forthe barrel and scoop (which come together at the hinge) could be usedwithout departing from the teachings of present disclosure. Althoughpotentially cumbersome, such configurations represent viable alternativeembodiments of the present disclosure.

FIG. 23 is a simplified schematic diagram illustrating a latch magnet230 associated with electronic device 10 having a touch pad section 232.In a particular example implementation, rare earth magnets withalternating polarity and a steel backplate are used to reduce straymagnetic fields through the underside of the keyboard and, further, toconcentrate the magnetic fields in the direction of the tablet. Forexample, beneath the wrist pad depicted in FIG. 23, three rare earthmagnets with alternating polarity can be suitably mounted. The latchmagnets can attract an associated magnet/snap plate combination mountedin the tablet. The steel backplate in the keyboard can concentrate themagnetic fields from the latch magnets and direct it upward, toward thetablet to help keep the device closed. The latch magnet can be designedto have an equal closing force when the device is in laptop mode andnested tablet mode.

FIG. 24 is a simplified schematic diagram illustrating an alternativedocking station 240 embodiment associated with electronic device 10. Asa general proposition, the disc hinge design of the present disclosure(with power isolated from the chassis) enables a more fully integratedtablet accessory capability, thus engendering countless functioningtablet accessories. For example, docking station 240 is one suchimplementation. FIG. 25 is a simplified schematic diagram illustratingan alternative speaker embodiment 250 associated with electronic device10. Any suitable audio system can be provisioned in conjunction with thepresent disclosure, as the depiction of FIG. 25 is only being offered byway of example.

FIG. 26 is a simplified block diagram illustrating potential electronicsassociated with electronic device 10. More particularly, FIG. 26illustrates an embodiment of an example system 2600 that may be includedin any portion (or shared by portions) of electronic device 10. System2600 includes a touch input device 2502, a touch controller 2602, one ormore processors 2604, system control logic 2606 coupled to at least oneof processor(s) 2604, system memory 2608 coupled to system control logic2606, non-volatile memory and/or storage device(s) 2610 coupled tosystem control logic 2606, display controller 2612 coupled to systemcontrol logic 2606, display controller 2612 coupled to a display, powermanagement controller 2618 coupled to system control logic 2606, andcommunication interfaces 2620 coupled to system control logic 2606.

Touch input device 2502 includes touch sensor 2520 and each may beimplemented using any suitable touch-sensitive technology such as, forexample and without limitation, capacitive, resistive, surface acousticwave (SAW), infrared, and optical imaging. Touch input device 2502, in aparticular embodiment, may be implemented using any suitable multi-touchtechnology.

System control logic 2606, in a particular embodiment, may include anysuitable interface controllers to provide for any suitable interface toat least one processor 2604 and/or to any suitable device or componentin communication with system control logic 2606. System control logic2606, in a particular embodiment, may include one or more memorycontrollers to provide an interface to system memory 2608. System memory2608 may be used to load and store data and/or instructions, forexample, for system 2600. System memory 2608, in a particularembodiment, may include any suitable volatile memory, such as suitabledynamic random access memory (DRAM) for example. System control logic2606, in a particular embodiment, may include one or more input/output(I/O) controllers to provide an interface to a display device, touchcontroller 2602, and non-volatile memory and/or storage device(s) 2610.

Non-volatile memory and/or storage device(s) 2610 may be used to storedata and/or instructions, for example within software 2628. Non-volatilememory and/or storage device(s) 2610 may include any suitablenon-volatile memory, such as flash memory for example, and/or mayinclude any suitable non-volatile storage device(s), such as one or morehard disc drives (HDDs), one or more compact disc (CD) drives, and/orone or more digital versatile disc (DVD) drives for example.

Power management controller 2618 includes power management logic 2630configured to control various power management and/or power savingfunctions of electronic device 10 based upon whether electronic device10 is in an open configuration or a closed configuration and/or aphysical orientation of electronic device 10. In one embodiment, powermanagement controller 2618 is configured to reduce the power consumptionof components or devices of system 2600 that may either be operated atreduced power or turned off when electronic device 10 is in the closedconfiguration. For example, in a particular embodiment when electronicdevice 10 is in a closed configuration, power management controller 2618may perform one or more of the following: power down the unused portionof the display and/or any backlight associated therewith; allow one ormore of processor(s) 2604 to go to a lower power state if less computingpower is required in the closed configuration; and shutdown any devicesand/or components, such as keyboard 108, that are unused when electronicdevice 10 is in the closed configuration.

Communications interface(s) 2620 may provide an interface for system2600 to communicate over one or more networks and/or with any othersuitable device. Communications interface(s) 2620 may include anysuitable hardware and/or firmware. Communications interface(s) 2620, ina particular embodiment, may include, for example, a network adapter, awireless network adapter, a telephone modem, and/or a wireless modem.

System control logic 2606, in a particular embodiment, may include oneor more input/output (I/O) controllers to provide an interface to anysuitable input/output device(s) such as, for example, an audio device tohelp convert sound into corresponding digital signals and/or to helpconvert digital signals into corresponding sound, a camera, a camcorder,a printer, and/or a scanner.

For one embodiment, at least one processor 2604 may be packaged togetherwith logic for one or more controllers of system control logic 2606. Inone embodiment, at least one processor 2604 may be packaged togetherwith logic for one or more controllers of system control logic 2606 toform a System in Package (SiP). In one embodiment, at least oneprocessor 2604 may be integrated on the same die with logic for one ormore controllers of system control logic 2606. For a particularembodiment, at least one processor 2604 may be integrated on the samedie with logic for one or more controllers of system control logic 2606to form a System on Chip (SoC).

For touch control, touch controller 2602 may include touch sensorinterface circuitry 2622 and touch control logic 2624. Touch sensorinterface circuitry 2622 may be coupled to detect touch input over afirst touch surface layer and a second touch surface layer of display 26(i.e., display device 2510). Touch sensor interface circuitry 2622 mayinclude any suitable circuitry that may depend, for example, at least inpart on the touch-sensitive technology used for touch input device 2502.Touch sensor interface circuitry 2622, in one embodiment, may supportany suitable multi-touch technology. Touch sensor interface circuitry2622, in one embodiment, may include any suitable circuitry to convertanalog signals corresponding to a first touch surface layer and a secondsurface layer into any suitable digital touch input data. Suitabledigital touch input data for one embodiment may include, for example,touch location or coordinate data.

Touch control logic 2624 may be coupled to help control touch sensorinterface circuitry 2622 in any suitable manner to detect touch inputover a first touch surface layer and a second touch surface layer. Touchcontrol logic 2624 for one embodiment may also be coupled to output inany suitable manner digital touch input data corresponding to touchinput detected by touch sensor interface circuitry 2622. Touch controllogic 2624 may be implemented using any suitable logic, including anysuitable hardware, firmware, and/or software logic (e.g., non-transitorytangible media), that may depend, for example, at least in part on thecircuitry used for touch sensor interface circuitry 2622. Touch controllogic 2624 for one embodiment may support any suitable multi-touchtechnology.

Touch control logic 2624 may be coupled to output digital touch inputdata to system control logic 2606 and/or at least one processor 2604 forprocessing. At least one processor 2604 for one embodiment may executeany suitable software to process digital touch input data output fromtouch control logic 2624. Suitable software may include, for example,any suitable driver software and/or any suitable application software.As illustrated in FIG. 26, system memory 2608 may store suitablesoftware 2626 and/or non-volatile memory and/or storage device(s).

It is imperative to note that all of the specifications, dimensions, andrelationships outlined herein (e.g., height, width, length, materials,etc.) have only been offered for purposes of example and teaching only.Each of these data may be varied considerably without departing from thespirit of the present disclosure, or the scope of the appended claims.The specifications apply only to one non-limiting example and,accordingly, they should be construed as such. In the foregoingdescription, example embodiments have been described. Variousmodifications and changes may be made to such embodiments withoutdeparting from the scope of the appended claims. The description anddrawings are, accordingly, to be regarded in an illustrative rather thana restrictive sense. It should also be noted that the terms ‘electronicdevice’ and ‘tablet’ have been used interchangeably herein in thisdocument.

Numerous other changes, substitutions, variations, alterations, andmodifications may be ascertained to one skilled in the art and it isintended that the present disclosure encompass all such changes,substitutions, variations, alterations, and modifications as fallingwithin the scope of the appended claims. In order to assist the UnitedStates Patent and Trademark Office (USPTO) and, additionally, anyreaders of any patent issued on this application in interpreting theclaims appended hereto, Applicant wishes to note that the Applicant: (a)does not intend any of the appended claims to invoke paragraph six (6)of 35 U.S.C. section 112 as it exists on the date of the filing hereofunless the words “means for” or “step for” are specifically used in theparticular claims; and (b) does not intend, by any statement in thespecification, to limit this disclosure in any way that is not otherwisereflected in the appended claims.

Example Embodiment Implementations

One particular example implementation may include means for receiving aplurality of segments of an accessory at an electronic device thatincludes a plurality of discs provided as part of a hinge assembly. Theimplementation may also include means for engaging the hinge assemblywith the accessory to secure a top portion of the electronic device tothe accessory, wherein the hinge assembly is to allow a rotation of thetop portion in relation to the accessory. The actual hinge assembly mayinclude a disc-toothed wheel to receive the plurality of segments of theaccessory in order to secure the top portion to the accessory. Inaddition, the accessory may include a tooth segment to provide analignment function as the hinge assembly engages the accessory.Additionally, the accessory may include one or more magnetic bands thatattract one or more rings provided in the top portion. Additionally, theaccessory may include stiff but flexible bands that can retain one ormore rings or discs provided in the top portion by means of a generalsnapping or over-center snapping mechanism.

What is claimed is:
 1. An electronic device, comprising: a hingeassembly to removably couple a portion of the electronic device to anaccessory, wherein the hinge assembly is to allow a rotation around anaxis of the portion in relation to the accessory when the portion iscoupled to the accessory, the hinge assembly includes a snap to providea retention force between the portion and the accessory when the portionis coupled to the accessory, the hinge assembly includes a toothed discto mate with the accessory to resist rotation between the portion andthe accessory when the portion is coupled to the accessory, and thetoothed disc is centered on the axis.
 2. The electronic device of claim1, wherein the snap includes three pieces, and the electronic devicefurther comprises three power signal pathways that run separatelythrough respective ones of the three pieces.
 3. The electronic device ofclaim 1, wherein the snap includes three pieces, and the electronicdevice further comprises a power signal pathway that runs through amiddle piece of the three pieces, wherein two outer pieces of the threepieces are insulators.
 4. The electronic device of claim 1, wherein theaccessory is a keyboard that includes a keyboard side snap with onepiece, and wherein a plurality of slots allow an independent motion ofouter snap bands of the keyboard.
 5. The electronic device of claim 1,wherein the accessory includes a portion of a ferrous housing to reduceone or more stray magnetic fields.
 6. The electronic device of claim 1,wherein the accessory includes one or more rare earth magnets to attractone or more discs of the hinge assembly of the electronic device.
 7. Theelectronic device of claim 1, wherein the accessory includes a band anda band support post to anchor the band, and wherein the band supportpost is to pass current from the portion through the band to power theaccessory.
 8. The electronic device of claim 1, wherein the portionincludes a touch display.
 9. The electronic device of claim 1, whereinthe accessory includes an audio component.
 10. The electronic device ofclaim 1, wherein the accessory is a docking station.
 11. The electronicdevice of claim 1, wherein the accessory includes a keyboard.
 12. Theelectronic device of claim 1, wherein the hinge assembly is to provide arange of rotation to the electronic device relative to the accessory,the range of rotation extending from 0° in a closed position to 150° ina substantially open position.
 13. The electronic device of claim 1,wherein the accessory includes an arced cavity to receive the hingeassembly.
 14. The electronic device of claim 13, wherein the arcedcavity is shaped as a portion of a cylinder.
 15. An accessory for anelectronic device, comprising: A first snap component to removably matethe accessory with the electronic device such that the accessory isallowed to rotate relative to the electronic device around an axis,wherein the electronic device includes a complementary second snapcomponent to provide a retention force between the electronic device andthe accessory when the first and second snap components are mated,wherein the accessory includes a tooth to mate with a toothed disc ofthe electronic device to resist rotation between the accessory and theelectronic device when the electronic device is mated to the accessory,and wherein the toothed disc is centered on the axis.
 16. The accessoryof claim 15, wherein the second snap component includes three pieces,and the accessory is to receive power signals that run separatelythrough respective ones of the three pieces.
 17. The accessory of claim15, wherein the second snap component includes three pieces, theaccessory is to receive a power signal that runs through a middle pieceof the three pieces, and two outer pieces of the three pieces areinsulators.
 18. The accessory of claim 15, further including a keyboard,a docking station, or an audio component.
 19. The accessory of claim 15,further including a cavity to receive a portion of the electronicdevice.
 20. The accessory of claim 15, further including one or morerare earth magnets.
 21. The accessory of claim 15, further including aband and a band support post to anchor the band.
 22. The accessory ofclaim 21, wherein the band support post is to pass current from theelectronic device through the band to power the accessory.
 23. Theaccessory of claim 15, wherein the second snap component is shaped as aportion of a cylinder, and the first snap component is shaped to curvearound the second snap component.
 24. A computing device, comprising: anelectronic device including a processing device and a hinge assembly,wherein the hinge assembly is to removably couple the electronic deviceto an accessory, the hinge assembly is to allow a rotation around anaxis of the portion in relation to the accessory when the portion iscoupled to the accessory, the hinge assembly includes a snap to providea retention force between the portion and the accessory when the portionis coupled to the accessory, the hinge assembly includes a toothed discto mate with the accessory to resist rotation between the portion andthe accessory when the portion is coupled to the accessory, and thetoothed disc is centered on the axis; and the accessory.
 25. Thecomputing device of claim 24, wherein the electronic device includes atouchscreen.